<html>#2426: g++-10 possibly miscompiles parts of Carpet
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<tr><td style='text-align:right'> Reporter:</td><td>Roland Haas</td></tr>
<tr><td style='text-align:right'> Status:</td><td>new</td></tr>
<tr><td style='text-align:right'>Milestone:</td><td></td></tr>
<tr><td style='text-align:right'> Version:</td><td></td></tr>
<tr><td style='text-align:right'> Type:</td><td>bug</td></tr>
<tr><td style='text-align:right'> Priority:</td><td>major</td></tr>
<tr><td style='text-align:right'>Component:</td><td>Other</td></tr>
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<p>Comment (by Erik Schnetter):</p>
<p>I wonder what triggers the problem. Are there multiple concurrent iterators? Is the iterator used in multiple threads? Is the bboxset2 set changed while an iterator is running? Or do I misunderstand the definition of <code>mutable</code>?</p>
<p>Disabling bboxset2 is very expensive when running on many MPI processes. Since machines today have many more cores than they used to, I would be careful with that.</p>
<p>My guess is that any failure in a low-level mechanism such as bboxset2 will lead to instant death for any simulation.</p>
<p>--<br/>
Ticket URL: <a href='https://bitbucket.org/einsteintoolkit/tickets/issues/2426/g-10-possibly-miscompiles-parts-of-carpet'>https://bitbucket.org/einsteintoolkit/tickets/issues/2426/g-10-possibly-miscompiles-parts-of-carpet</a></p>
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